NOW Foods Vitamin D-3 & K-2, 1000 IU/45 mcg, 120 Veg Capsules

Key Health Benefits

• Bone Health: Adequate intake of vitamins D and K is essential for normal bone development and maintenance. D3 helps absorb calcium; K2 helps incorporate it into the bone matrix, supporting bone strength as you age.
• Cardiovascular Support: By activating matrix GLA protein (MGP), K2 helps keep calcium from building up in artery walls, supporting healthy blood vessel function.
• Immune Function: Vitamin D receptors are found on many immune cells, indicating its role in modulating immune responses.
• Dental Health: Proper calcium utilisation also benefits teeth, as the jawbone and tooth structure rely on calcium for strength.
• Overall Well-being: The combination contributes to the maintenance of normal muscle function and cell division.

Understanding the Synergy: How D3 and K2 Work Together

The synergy between D3 and K2 is a remarkable example of nutrient teamwork. Vitamin D3 upregulates the expression of calcium transport proteins in the intestine, boosting absorption efficiency. Simultaneously, vitamin K2—specifically the menaquinone-7 (MK-7) form found in NOW Supplements—supports the carboxylation (activation) of osteocalcin and MGP. This process requires both adequate vitamin K2 and sufficient vitamin D. The result is improved calcium utilisation that benefits bone mineral density and arterial flexibility. Clinical research suggests that the combination may offer greater benefits than either nutrient alone. Furthermore, the MK-7 form of vitamin K2 has a longer half-life in the body, allowing for more consistent activation of K2-dependent proteins.

What to Look For in a D3 + K2 Supplement

When choosing a D3+K2 supplement, consider the form of vitamin K2. MK-7 (menaquinone-7) is preferred because it has a longer half-life in the body, allowing for once-daily dosing and more consistent activation of K2-dependent proteins. NOW Supplements provides 45 mcg of MK-7 per capsule, a clinically researched amount. The vitamin D3 comes from lanolin and is well-absorbed. Additionally, the product is non-GM, Kosher, and Soya Free, and it is third-party tested for purity and potency under GMP guidelines. The company’s long history (since 1968) speaks to its commitment to quality. NOW is one of the largest independent, family- and employee-owned manufacturers of natural products, and its in-house laboratories are ISO/IEC accredited for laboratory testing, including for stability, potency, and product formulation.

Why Take Vitamin D3 and K2 Together?

Vitamin D3 (cholecalciferol) is well-known for its role in helping the body absorb calcium from the digestive tract. However, without adequate vitamin K2, that calcium may end up in soft tissues such as arteries and kidneys rather than in bones and teeth. Vitamin K2 activates two key proteins: osteocalcin, which helps anchor calcium into bone, and matrix GLA protein (MGP), which helps prevent calcium from depositing in blood vessels. By taking D3 and K2 together, you help ensure that the calcium you consume is used where it is needed most.

Why Choose NOW Foods?

NOW Foods has been a trusted name in natural products since 1968. The company is family- and employee-owned, and its manufacturing processes are GMP Quality Assured. All products undergo rigorous third-party testing for purity and potency in ISO/IEC accredited labs. NOW’s Vitamin D3 and K2 supplement is Non-GM, Kosher, and Soya Free, making it suitable for a wide range of dietary needs. With a commitment to quality and innovation, NOW Foods ensures that you receive the highest standard of nutritional support.

Frequently Asked Questions

Can I take this supplement if I am on blood thinners? If you are taking anticoagulants like warfarin, consult your health care provider, as vitamin K can interfere with the medication.

Should I take it with food? Yes, because both D3 and K2 are fat-soluble, taking the capsule with a meal that contains healthy fats improves absorption.

How long does it take to see results? Individual results vary. Consistent